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Merge branch 'decklink' into 'main'

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decklink: possibility to reduce the bit depth from 10 to 8 bits by using the video-format parameter

Closes #3194

See merge request gstreamer/gstreamer!5855
This commit is contained in:
Wojciech Kapsa 2024-05-04 00:20:05 +00:00
parent 73c64e8182 af19699df0
commit b1ed02731c
1 changed files with 65 additions and 37 deletions
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102
subprojects/gst-plugins-bad/sys/decklink/gstdecklink.cpp
View file

@ -1102,30 +1102,52 @@ public:
}
virtual HRESULT STDMETHODCALLTYPE
VideoInputFormatChanged (BMDVideoInputFormatChangedEvents,
VideoInputFormatChanged (BMDVideoInputFormatChangedEvents events,
IDeckLinkDisplayMode * mode, BMDDetectedVideoInputFormatFlags formatFlags)
{
BMDPixelFormat pixelFormat = bmdFormatUnspecified;
GST_DEBUG
("Detected BMDDetectedVideoInputFormatFlags: 0x%.8X, BMDDisplayMode: 0x%.8X ",
formatFlags, mode->GetDisplayMode ());
GST_INFO ("Video input format changed");
/* Detect input format */
if (formatFlags & bmdDetectedVideoInputRGB444) {
if (formatFlags & bmdDetectedVideoInput10BitDepth) {
pixelFormat = bmdFormat10BitRGB;
if (!m_input->auto_format) {
switch (m_input->format) {
case bmdFormat8BitBGRA:
case bmdFormat8BitARGB:
GST_INFO ("10 bit rgb downgraded to 8 bit rgb");
pixelFormat = m_input->format;
break;
default:
break;
}
}
} else if (formatFlags & bmdDetectedVideoInput8BitDepth) {
/* Cannot detect ARGB vs BGRA, so assume ARGB unless user sets BGRA */
if (m_input->format == bmdFormat8BitBGRA) {
pixelFormat = bmdFormat8BitBGRA;
} else {
pixelFormat = bmdFormat8BitARGB;
}
pixelFormat =
m_input->format ==
bmdFormat8BitBGRA ? bmdFormat8BitBGRA : bmdFormat8BitARGB;
} else {
GST_ERROR ("Not implemented depth");
}
} else if (formatFlags & bmdDetectedVideoInputYCbCr422) {
if (formatFlags & bmdDetectedVideoInput10BitDepth) {
pixelFormat = bmdFormat10BitYUV;
if (!m_input->auto_format) {
switch (m_input->format) {
case bmdFormat8BitYUV:
GST_INFO ("10 bit yuv downgraded to 8 bit yuv");
pixelFormat = m_input->format;
break;
default:
break;
}
}
} else if (formatFlags & bmdDetectedVideoInput8BitDepth) {
pixelFormat = bmdFormat8BitYUV;
}
@ -1141,40 +1163,46 @@ public:
return E_FAIL;
}
g_mutex_lock (&m_input->lock);
m_input->input->PauseStreams ();
m_input->input->EnableVideoInput (mode->GetDisplayMode (),
pixelFormat, bmdVideoInputEnableFormatDetection);
m_input->input->FlushStreams ();
if ((events & (bmdVideoInputDisplayModeChanged |
bmdVideoInputFieldDominanceChanged))
|| (m_input->format != pixelFormat)) {
GST_DEBUG
("Set the BMDDisplayMode to: 0x%.8X and the BMDPixelFormat to: 0x%.8X ",
mode->GetDisplayMode (), pixelFormat);
g_mutex_lock (&m_input->lock);
m_input->input->PauseStreams ();
m_input->input->EnableVideoInput (mode->GetDisplayMode (), pixelFormat,
bmdVideoInputEnableFormatDetection);
m_input->input->FlushStreams ();
/* Reset any timestamp observations we might've made */
if (m_input->videosrc) {
GstDecklinkVideoSrc *videosrc =
GST_DECKLINK_VIDEO_SRC (m_input->videosrc);
/* Reset any timestamp observations we might've made */
if (m_input->videosrc) {
GstDecklinkVideoSrc *videosrc =
GST_DECKLINK_VIDEO_SRC (m_input->videosrc);
g_mutex_lock (&videosrc->lock);
videosrc->window_fill = 0;
videosrc->window_filled = FALSE;
videosrc->window_skip = 1;
videosrc->window_skip_count = 0;
videosrc->current_time_mapping.xbase = 0;
videosrc->current_time_mapping.b = 0;
videosrc->current_time_mapping.num = 1;
videosrc->current_time_mapping.den = 1;
videosrc->next_time_mapping.xbase = 0;
videosrc->next_time_mapping.b = 0;
videosrc->next_time_mapping.num = 1;
videosrc->next_time_mapping.den = 1;
g_mutex_unlock (&videosrc->lock);
g_mutex_lock (&videosrc->lock);
videosrc->window_fill = 0;
videosrc->window_filled = FALSE;
videosrc->window_skip = 1;
videosrc->window_skip_count = 0;
videosrc->current_time_mapping.xbase = 0;
videosrc->current_time_mapping.b = 0;
videosrc->current_time_mapping.num = 1;
videosrc->current_time_mapping.den = 1;
videosrc->next_time_mapping.xbase = 0;
videosrc->next_time_mapping.b = 0;
videosrc->next_time_mapping.num = 1;
videosrc->next_time_mapping.den = 1;
g_mutex_unlock (&videosrc->lock);
}
m_input->input->StartStreams ();
m_input->mode =
gst_decklink_get_mode (gst_decklink_get_mode_enum_from_bmd
(mode->GetDisplayMode ()));
m_input->format = pixelFormat;
g_mutex_unlock (&m_input->lock);
}
m_input->input->StartStreams ();
m_input->mode =
gst_decklink_get_mode (gst_decklink_get_mode_enum_from_bmd
(mode->GetDisplayMode ()));
m_input->format = pixelFormat;
g_mutex_unlock (&m_input->lock);
return S_OK;
}